... 3.1 Electric heater I, Installation1,Should select three-core cable, which accords with the state standards and ... and cause bad consequences.4,As to anti-dry heating product, at the required temperature, if you want ... minutes, connect to the power to go on heating.5,The set maximum temperature of our product is ... producing factory. HY-4 HY-1 Electrical heating element solar water heater 1500W, 2000W